code: def test_local_nameserver_1(self):
      host, port = utils.start_local_nameserver(
          host=None, nic_name=None
      )
      self.assertEqual(host, "localhost")
  
      ns = hpn.NameServer("0", host=host)
      ns_host, ns_port = ns.start()
      self.assertEqual(ns.host, "localhost")
      ns.shutdown()
  
file_path: HpBandSter/tests/test_utils.py
imports: import unittest
  import logging
  import ConfigSpace
  from hpbandster.core.worker import Worker
  import hpbandster.core.nameserver
  import hpbandster.utils
label_desc: Use image node_id 1 for calling the TestUtils obj's underlying member method code with example usage: obj.test_local_nameserver_1() without return types